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I've had my 2007 Titan LE for a little over 10 months and just 7,450 miles. I like everything about it so far, but lately I see some potential trouble. First of all, my gas mileage has been horrible. I knew that the mileage would be bad with this truck, but I've been averaging about 8-9 miles a gallon for the last two months. Most of it is around town driving (although very little stop and go as we only have 2 stoplights in the area). I'm sure some of it has to do with it being winter and the colder weather and some 4x4 use. Mostly, I think it involves my transmission and the fact that it is shifting irregular. I notice on downhill stretches that it seems to shift back and forth between the gear it should be in and one lower. This causes higher RPM's. I also notice it somewhat on level ground and a little more when I travel up hills. It seems to be most prononced on the downhill and it is becoming frustrating. I experience this a lot because all we have in this area area large hills.

Anybody have any ideas or have you had similar problems? I've read a lot that Titan's have transmission issues. Could this be the precursor to a major issue? I would take it into the dealership, but the closest Nissan dealership is 220 miles away. Any suggestions would be helpful. Thank you.
 

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Have you read the owner's manual on how the Transmission works on hills?

Maybe a ECU reset!!??
 

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The tranny will downshift itself when going down a steep hill, but it will(supposed to) hold that gear till you get back on the gas and make it shift to the next gear. If your tranny is constantly searching for gears while going uphill and downhill, you probably want to have it looked at soon.
 

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Transmission issues???? I haven't heard that. Why your truck would be fishing for a gear going uphill is a mystery to me, other than I'll tell you that this truck likes to rev. Downhill, it's a feature of the truck for it to downshift to keep you from having to ride the brakes all the way down. You're way within warranty, so no matter what, your dealer should be able to help you out.

Sidebar: Your avatar shows you in snow. Are you in snow a lot with 4WD engaged? Thinking about your mileage here. :dunno:
 

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The tranny thing has me stumped but here is a thought on your MPG's. It can be very difficult to figure MPG's during the winter. Remember if you let your truck warm up a while (and you should) you are getting 0 MPG for that period. Not sure if this applies to your case but thought I would throw it out there.
 

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And some folks just get crappy mileage. Don't know why.
 

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Carbeaux said:
And some folks just get crappy mileage. Don't know why.
Some of us just can't keep our foot out of it!!! :rofl:
 

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It's normal for a big truck with a big honkin engine to get poor gas mileage, it's also normal for the Titan to automaticaly down shift going down hill.
 

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bbomar said:
Some of us just can't keep our foot out of it!!! :rofl:
That's the secret to the "factory monster" you claim. :lol:
 

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It's under warranty so put on your big boy pants, bite the bullet and take it in to your dealer with your complaint. It needs to be diagnosed even if they can't find anything wrong. If they can't fix it, some ideas:

Have you reset your ECU?

Do you lug it up hills in Drive?

Hope you can get this mileage thing resolved.

I've kept track of my MPG since day one, the worst I got was 12 MPG when it was new, I average 15-16 around town and my best on the highway was 19.75 MPG on a round trip from Maryville to Murfreesboro and back in August this year. In the winter, my mileage drops about 1 MPG, due to cold, idling, fluctuations in tire pressure due to the cold temps, fuel formulation, pick one or more. All MPG's calculated at the pump, btw.

2004 CCLE w/BT, Banks exhaust, Volant CAI.

Maybe mine's a freak, maybe I drive like an old man, then again maybe not.
 

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Carbeaux said:
That's the secret to the "factory monster" you claim. :lol:
Yeah, but I avg. 18 MPG on the highway!!!
 

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My mileage with nothing but the 2* is right where 37L1 says his is. I've only gotten worse mileage when towing. And that's been downright bad, but it would have been in ANY truck. I average about 14 for my day to day commute and driving. Best was 19 going up to OK. Worst, probably 8 or so, towing the 6000 lb travel trailer with a headwind.
 

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With my 2wd Big Tow, I average 12-13 MPG in mostly city driving. This may seem stupid, but are you driving in fifth gear? Thier has been a few people that were driving in fourth gear and didn't know to move the shifter over one slot for fifth which will cause bad mileage.
 

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I also wouldn't try and blame the downhill, higher RPMs for bad milegae since even though RPMs are higher, fuel is cut way back while coasting downhill. I can't speak yet about the mileage on my new 08 PRO-4X, but my 04 got about 12 MPG around town for the 3.3 years I had it. I've noticed though that on the 08s, the torque converter locks up MUCH sooner and keeps it far below 2000 RPMs whereas my 04 never did that. It was always at or above 2000 RPM around town driving around 40-45 MPH. We'll see what happens.
Didn't mean to go off topic...sorry Mjbuck. I don't know how long you've had your truck but if you think somethings not right, bring it in and have er' checked out by the dealer. But it sounds normal from my experience.
 

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start a new tank of gas and try again. Maybe the winter fuel.
 

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phillipyang said:
start a new tank of gas and try again. Maybe the winter fuel.
hmmm could be but it's January so the next tank will be winter fuel too :jester:
 

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I have noticed a drop in MPG with the lasts few tanks, got to love that winter gas!!!
 

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I think it's all 10% blended gas now. The winter gas, as we called it, had that MTBE or something...which was stopped wasn't it? Shoot...I get crappy mileage all the time..summer included!
 

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nothing wrong with your truck..... including the mileage.
 

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My regular, daily truck use mileage doesn't seem to fluctuate based on the season. :dunno:
 
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